The Language Facility Test was administered to 48 preschool children in Head Start classes in Ft. Worth, Texas, to determine (1) if the spontaneous production of English speech would be better after the bilingual children were first allowed to perform in Spanish, and (2) if the English language performance of the Mexican-American bilingual children would be better when tested by a Mexican-American examiner, rather than an Anglo-American examiner. Results of the study showed that (1) pupils performed better with a Mexican-American examiner and (2) children performed better in English after initial performance in a similar task in Spanish. Recommendations were that: (1) bilingual education be made mandatory, (2) new material on bilingual education be made available, (3) English be taught as a second language to bilingual children, (4) teachers be fluent in both languages, and (5) under-achieving Spanish-speaking children be tested in Spanish as well as in English to determine more accurately their potential and specific needs. A survey of related studies is included. (CM)